.Coupon_box{
    height: 3rem;
    border-radius: 0.2rem;
    margin: 0.2rem;
    line-height: 0.5rem;
    border:0.01rem solid black;
}   
.Coupon_box div{
    font-size: 0.3rem;
    text-indent: 0.2rem;
}   
.Coupon_box_h{
    font-size: 0.4rem;
    text-indent: 0.2rem;
    line-height: 0.7rem;
}  